Home / 9,783.12-13,508.46-9,036.80

Finding the Fourth Proportional to 9,783.12, 13,508.46 and 9,036.80

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Solution

The fourth proportional to 9,783.12, 13,508.46 and 9,036.80 is: 12,477.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,783.12 : 13,508.46 = 9,036.80 : x
  2. Step 2: Convert to fraction form
    9,783.12/13,508.46 = 9,036.80/x
  3. Step 3: Cross multiply
    9,783.12x = 13,508.46 × 9,036.80
  4. Step 4: Simplify right side
    9,783.12x = 122,073,251.33
  5. Step 5: Solve for x
    x = 122,073,251.33/9,783.12
  6. Step 6: Final answer
    x = 12,477.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.